Mix Tape: Sluggish Sales for Lilith Fair, Engagement for Miranda Lambert

-Are the days of big Lilith Fair tours already over? Organizer Sarah McLachlan admits ticket sales for the 2010 version are “pretty soft.”

-Jay-Z and Eminem will both be in an Empire State of Mind when they perform together at Yankee Stadium on September 13. That event will be preceded by a joint Comerica Park appearance in Detroit on Sept. 2.

-Miranda Lambert and Blake Shelton will soon be making sweet country music together. The two artists became engaged earlier this month.

-Greyson Chance, the YouTube star who sang “Paparazzi,” now has a record deal with Interscope Records. I wonder if he’ll finish sixth grade first.

-Norway’s a-ha played their last US concert last weekend. The “Take on Me” singers will be disbanding at the end of this year after nearly 30 years together.

Gallery: Mix Tape: Sluggish Sales for Lilith Fair, Engagement for Miranda Lambert

Mix Tape: Garth Brooks Hits Vegas, Def Leppard is Sued

-Apparently retirement didn’t sit with Garth Brooks very well. The country singer began a lengthy stay as the Wynn Hotel’s headliner this weekend.

-Can Jennifer Lopez stay on her feet this time? Find out when the “Louboutins” singer and Mary J. Blige perform on So You Think You Can Dance’s season finale this Wednesday.

-Def Leppard’s former manager, Trudy Green, is suing the band and their accountant for non-payment. Love hurts.

-Billboard recently charted the top One-Hit Wonders of the decade. Somebody out there is having a really “Bad Day.”

-Speaking of the decade, Newsweek chose their Best Albums of the past ten years. Anyone else surprised by the Kelly Clarkson mention?

-Although they already have two children together, Pearl Jam’s Eddie Vedder and his girlfriend, Jill McCormick, are finally getting around to that wedding thing. The longtime couple became engaged a week ago.

Gallery: Mix Tape: Garth Brooks Hits Vegas, Def Leppard is Sued